CN108106917A - A kind of solution mixing pit cleaning and drying method - Google Patents
A kind of solution mixing pit cleaning and drying method Download PDFInfo
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- CN108106917A CN108106917A CN201711220185.7A CN201711220185A CN108106917A CN 108106917 A CN108106917 A CN 108106917A CN 201711220185 A CN201711220185 A CN 201711220185A CN 108106917 A CN108106917 A CN 108106917A
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- 238000002156 mixing Methods 0.000 title claims abstract description 64
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- 238000001035 drying Methods 0.000 title claims abstract description 7
- 239000000243 solution Substances 0.000 claims abstract description 104
- 238000010790 dilution Methods 0.000 claims abstract description 40
- 239000012895 dilution Substances 0.000 claims abstract description 40
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract 6
- 239000007788 liquid Substances 0.000 abstract description 97
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 42
- 238000001514 detection method Methods 0.000 description 23
- 238000003149 assay kit Methods 0.000 description 21
- 239000012452 mother liquor Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 239000012086 standard solution Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 230000037361 pathway Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000012482 calibration solution Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000000205 computational method Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004457 water analysis Methods 0.000 description 2
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
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- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of solution mixing pit cleaning and drying methods, comprise the following steps：The first step：By Control architecture B the second syringe pump (5) is controlled to draw dilution from dilution bottle, it is injected into mixed solution pond (1), host computer sends the 4th control signal to circuit control panel, start magnetic stirrer (7) and cleaning is stirred to mixed solution pond (1), cleaning finishes, and by the 3rd control signal peristaltic pump is controlled to discharge；Second step is controlled by the 3rd control signal and opens peristaltic pump, while starts magnetic stirrer (7) by the 4th control signal so that stirrer (73) rotates, and then quickly dry mixed solution pool (1).The present invention can carry out water quality online analyzer self-checking device to clean and dry up, the influence for preventing Liquid Residue from preparing solution next time automatically.
Description
Technical field
The present invention relates to solution in a kind of solution Mixed Design method more particularly to a kind of Water Test Kits calibrating installation to mix
Closing must design.
Background technology
In environment water monitoring system, generally water body parameter is detected using online water analysis instrument, online water
Whether the accuracy of detection of matter analyzer meets national verification regulatory requirements, general to use the manually metering to online water analysis instrument
Performance is calibrated, and the long time period of artificial detection in-line analyzer when small (generally require 36).And how water quality is set
The mixing of solution in analyzer calibrating installation is to influence the big factor that calibrating installation solution is prepared.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, it is high that the present invention provides a kind of solution precision preparation
Solution mixing arrangement and mixed method.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of solution mixing arrangement, including solution mixing pit (1), mixing pit inlet tube (2), the first syringe pump (4), first
Inlet tube (41), the first outlet tube (42), the second syringe pump (5), the second inlet tube (51), the second outlet tube (52), electromagnetism stir
Device (7) is mixed, wherein：
The liquid feeding end of first syringe pump (4) for being connected by the first inlet tube (41) with standard mother liquid multi-cavity bottle
Liquid end is connected by the first outlet tube (42) with solution mixing pit (1).The liquid feeding end of second syringe pump (5) is used for by the
Two inlet tubes (51) are connected with dilution bottle, and outlet end is connected by the second outlet tube (52) with solution mixing pit (1).It is described
Solution mixing pit (1) is included with open major trough body (11), capping (12), and the capping (12) is used to cover in major trough body (11)
Opening on, close major trough body (11).Major trough body (11) bottom is provided with feed pathway (111), detection liquid flow pass
(112) and apocenosis passage (113).
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), the electromagnetism
Ferropexy seat (71) is used to electromagnet (72) being fixed on the bottom of major trough body (11), and the stirrer (73) is arranged at major trough
Body (11) interior intracavitary.
Further：The pipe fitting of Y-type three way type (3), the Y-type three way type (3) for two import one outlets is further included, respectively
For the first inlet tube, the second inlet tube and first outlet pipe.Described mixing pit inlet tube (2) one end and first outlet Guan Lian
It connects, the other end is connected with solution mixing pit (1).One end of first outlet tube (42), first go out liquid check valve (44) and
First inlet tube is sequentially connected, and the other end of first outlet tube (42) is connected with the port of export of standard mother liquid multi-cavity bottle.It is described
One end of second outlet tube (52), second go out liquid check valve (54) and the second inlet tube is sequentially connected, and described second goes out liquid
The other end of pipe (52) is connected with the port of export of dilution bottle.Connection between first inlet tube and the first outlet tube (42)
Place is provided with the first feed liquor check valve (43) for preventing that liquid from flowing back, the connection of second inlet tube and the second outlet tube (52)
Place is provided with the second feed liquor check valve (53) for preventing that liquid from flowing back.
Preferably：Described first, which goes out liquid check valve (44), closes mouth to the distance L that the first inlet tube exports less than 4 times first
Go out liquid check valve (44) port of export caliber R.Described second goes out the distance L that liquid check valve (54) closing mouth is exported to the second inlet tube
Go out liquid check valve (54) port of export caliber R less than 4 times second.
Preferably：The angle of angle between first inlet tube, the second inlet tube is 45 °.
Preferably：The inlet of the apocenosis passage (113) is located at the bottom of major trough body (11) inner cavity, and the feed liquor leads to
The inlet in road (111) is higher than the inlet of detection liquid flow pass (112), while the inlet of the apocenosis passage (113)
Less than the inlet of detection liquid flow pass (112), the detection liquid flow pass (112) is used to connect inspection by sampling equipment.
A kind of solution blending methods, comprise the following steps：
Step 1, start the first syringe pump (4) and draw standard solution mother liquor from standard mother liquid multi-cavity bottle.Start the second syringe pump (5)
Dilution is drawn from dilution bottle, starts magnetic stirrer (7) and is stirred.
Step 2, the second syringe pump (5) is first controlled to inject dilution to solution mixing pit (1), then controls the first injection
(4) are pumped to inject standard solution mother liquor to solution mixing pit (1).
Step 3, finished when standard solution mother liquor injects, continue that the second syringe pump (5) is controlled to mix dilution to solution
Pond (1) is injected.
Step 4, finished when solution is injected to solution mixing pit (1), magnetic stirrers (7) is waited to stir evenly solution, closed
Close magnetic stirrer (7).
Preferably：Continue the dilution that the second syringe pump (5) is controlled to inject dilution to solution mixing pit (1) in step 3
The amount of liquid at least accounts for 1/5th of the amount of entire dilution.
The present invention compared with prior art, has the advantages that：
The present invention has higher the degree of automation and higher solution mixed-precision.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the principle schematic of water quality online analyzer self-checking device；
Fig. 3 is the workflow schematic diagram of water quality online analyzer self-checking device；
Fig. 4 is the structure diagram of solution mixing pit；
Fig. 5 is the stereoscopic schematic diagram of solution mixing pit；
Fig. 6 is electromagnetism fixed seat structure schematic diagram；
Fig. 7 is capping structure diagram；
Fig. 8 is the structure diagram of threeway.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these examples are merely to illustrate this
It invents rather than limits the scope of the invention, after the present invention has been read, those skilled in the art are various to the present invention's
The modification of equivalent form falls within the application scope as defined in the appended claims.
A kind of solution mixing arrangement, as shown in Figure 1, including solution mixing pit (1), mixing pit inlet tube (2), the first injection
Pump (4), the first inlet tube (41), the first outlet tube (42), the second syringe pump (5), the second inlet tube (51), the second outlet tube
(52), magnetic stirrer (7), wherein：
The liquid feeding end of first syringe pump (4) for being connected by the first inlet tube (41) with standard mother liquid multi-cavity bottle
Liquid end is connected by the first outlet tube (42) with solution mixing pit (1).The liquid feeding end of second syringe pump (5) is used for by the
Two inlet tubes (51) are connected with dilution bottle, and outlet end is connected by the second outlet tube (52) with solution mixing pit (1).It is described
Solution mixing pit (1) is included with open major trough body (11), capping (12), and the capping (12) is used to cover in major trough body (11)
Opening on, close major trough body (11).Major trough body (11) bottom is provided with feed pathway (111), detection liquid flow pass
(112) and apocenosis passage (113).
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), the electromagnetism
Ferropexy seat (71) is used to electromagnet (72) being fixed on the bottom of major trough body (11), and the stirrer (73) is arranged at major trough
Body (11) interior intracavitary；The feed pathway (111), detection liquid flow pass (112) and apocenosis passage (113) are located at stirring
The lower section of sub (73).
Further include the pipe fitting of Y-type three way type (3), the Y-type three way type (3) for two import one outlets, be respectively first into
Mouth pipe, the second inlet tube and first outlet pipe.Described mixing pit inlet tube (2) one end is connected with first outlet pipe, the other end
It is connected with solution mixing pit (1).One end of first outlet tube (42), first go out liquid check valve (44) and the first inlet tube
It is sequentially connected, and the other end of first outlet tube (42) is connected with the port of export of standard mother liquid multi-cavity bottle.Second outlet tube
(52) one end, second go out liquid check valve (54) and the second inlet tube is sequentially connected, and second outlet tube (52) is another
One end is connected with the port of export of dilution bottle.Junction between first inlet tube and the first outlet tube (42) is provided with anti-
The junction of only the first feed liquor check valve (43) of liquid reflux, second inlet tube and the second outlet tube (52) is provided with anti-
Only the second feed liquor check valve (53) of liquid reflux.
The purpose for setting Y-type three way type (3) mainly reduces the first syringe pump (4), the second syringe pump (5) and solution mixing pit
(1) length of pipe between, i.e. mixing pit inlet tube (2) can be that two pipelines can also be a pipeline, if the first injection
Pump (4), the second syringe pump (5) are connected respectively with two pipelines with solution mixing pit (1), then add the dead volume in pipeline,
The configuration precision of solution is influenced, therefore two pipelines are merged into a pipeline by the present invention using Y-type three way type (3), are reduced
The length of pipeline thereby reduces the dead volume in pipeline, improves the configuration precision of solution.
First goes out there are two the purposes of liquid check valve (44) setting, and first is to prevent liquid from flowing back from Y-type three way type (3),
It is another to be, when first go out liquid check valve (44) closing mouth go out liquid check valve less than 4 times first to the distance L that the first inlet tube exports
(44) during port of export caliber R, first goes out liquid check valve (44) exports to form turbulence structure with the first inlet tube, when the first liquid stops
When only being flowed into mixing pit inlet tube (2), go out first between liquid check valve (44) closing mouth is exported to the first inlet tube and have
First liquid is flowed into when second liquid continues through Y-type three way type (3) in mixing pit inlet tube (2), due to the first inlet tube, the
There are angles between two inlet tubes so that the second liquid flowed out from the second inlet tube rushes at the outlet of the first inlet tube, with first
Inlet tube outlet is collided, and second liquid after collision forms turbulent flow, within and around the outlet of the first inlet tube of agitation, first
Go out the solution in liquid check valve (44), and then enter first and go out in liquid check valve (44), go out liquid list when turbulent flow is moved to first
When closing mouth to valve (44), due to closing the stop of mouth, turbulent flow returns, and the return of turbulent flow goes out first in liquid check valve (44)
Solution take out of, and then realize the first exchange for going out solution in liquid check valve (44), i.e., go out liquid check valve (44) envelope by first
The first liquid having between exporting of remaining silent to the first inlet tube is gradually diluted by the effect of turbulent flow to be taken out of, avoids Liquid Residue pair
The influence that solution is prepared, and then improve the configuration precision of solution.Similarly understand the second setting purpose for going out liquid check valve (54).
Described first goes out liquid check valve (44) closing mouth goes out liquid list to the distance L that the first inlet tube exports less than 4 times first
To valve (44) port of export caliber R, described second, which goes out liquid check valve (54), closes mouth to the distance L that the second inlet tube exports less than 4
Second goes out liquid check valve (54) port of export caliber R again.First go out liquid check valve (44) close mouth to the first inlet tube export away from
More short better with a distance from L, distance is shorter, and turbulent flow is bigger, can preferably contradict second and go out liquid check valve (54) closing
Solution at mouthful.Y-type three way type (3) is as long as ensure that there are angle, best angles between the first inlet tube, the second inlet tube
For 45 °, using PTEF materials, the Y-type three way type of special angle makes that the connecting line in calibrating installation is as short as possible, dead volume to the greatest extent may be used
It can be small.
Described first goes out liquid check valve (44) closing mouth goes out liquid list to the distance L that the first inlet tube exports less than 4 times first
To valve (44) port of export caliber R.Described second, which goes out liquid check valve (54), closes mouth to the distance L that the second inlet tube exports less than 4
Second goes out liquid check valve (54) port of export caliber R again.First go out liquid check valve (44) close mouth to the first inlet tube export away from
More short better with a distance from L, distance is shorter, and turbulent flow is bigger, can preferably contradict second and go out liquid check valve (54) closing
Solution at mouthful.
The inlet of the apocenosis passage (113) is located at the bottom of major trough body (11) inner cavity, and the feed pathway (111)
Inlet higher than detection liquid flow pass (112) inlet, while the inlet of the apocenosis passage (113) less than detection
The inlet of liquid flow pass (112), the detection liquid flow pass (112) are used to connect inspection by sampling equipment.The feed liquor
Passage (111), detection liquid flow pass (112) and apocenosis passage (113) are located at the lower section of stirrer (73).Led to using feed liquor
Road (111) is arranged at the bottom of inner cavity, and positioned at the lower section of stirrer 73 so that dilution and standard mother liquor are from solution mixing pit
(1) bottom enters solution mixing pit (1), when so preventing that stirrer 73 from rotating, dilution and standard mother liquor is beaten and is flown in solution
On mixing pit (1) inner wall, the mixed-precision of solution is influenced.In addition, when having solution in solution mixing pit (1), stirrer is just opened
Beginning work accelerates mixing velocity to mix test solution.The present invention carries out mixing pit using solution from bottom of pond portion, while top is capped,
This structure can reduce the influence of the evaporation of solution, mixing pool wall solution wall built-up phenomenon to precision preparation.Therefore when sampling sample introduction,
It need not stop stirring.
A kind of solution blending methods, comprise the following steps：
Step 1, start the first syringe pump (4) and draw standard solution mother liquor from standard mother liquid multi-cavity bottle.Start the second syringe pump (5)
Dilution is drawn from dilution bottle, starts magnetic stirrer (7) and is stirred.
Step 2, the second syringe pump (5) is first controlled to inject dilution to solution mixing pit (1), then controls the first injection
(4) are pumped to inject standard solution mother liquor to solution mixing pit (1).
Step 3, finished when standard solution mother liquor injects, continue that the second syringe pump (5) is controlled to mix dilution to solution
Pond (1) is injected.The amount for continuing the dilution that the second syringe pump (5) is controlled to inject dilution to solution mixing pit (1) at least accounts for
/ 5th of the amount of entire dilution.
Step 4, finished when solution is injected to solution mixing pit (1), magnetic stirrers (7) is waited to stir evenly solution, closed
Close magnetic stirrer (7).
As illustrated in figs. 2 through 8, by the present invention for the configuration of solution in water quality online analyzer self-checking device, the water
Matter in-line analyzer self-checking device include host computer, the first control module A, the second control module B, the 3rd control module C,
Circuit control panel, peristaltic pump (6), magnetic stirrer (7) and solution mixing arrangement, wherein：
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), the electromagnetism
Ferropexy seat (71) is used to for electromagnet (72) to be fixed on the bottoms of major trough body (11), and the stirrer (73) be arranged at it is hollow
In slot.The electromagnet fixed seat (71) is provided centrally with fixed block hole (711)；Drain pipe passes through fixed block hole
(711) connected with apocenosis passage (113), peristaltic pump (6) is arranged on drain pipe.
The present invention there are two purpose, first, facilitating solution disengaging solution mixing pit 1, is accelerated molten using magnetic stirrer (7)
The mixing of liquid, two are to speed up the drying of major trough body (11).When solution mixes, since stirrer (73) is in electromagnet (72) work
With lower rotation, pass through the rotation of stirrer (73) so that solution mixes evenly.When dry, turned by stirrer (73)
Movable property gives birth to wind, and the hollow groove rotation of the wind of generation in major trough body (11) accelerates the evaporation of solution on major trough body (11) inner wall, so
Afterwards by the swabbing action of peristaltic pump (6), humid air from major trough body (11) is extracted out, therefore accelerates the dry of major trough body (11)
It is dry, raffinate is avoided to influence the configuration precision of solution next time.
The first control signal that the first control module A is used to be sent according to host computer controls the first syringe pump (4) to inhale
It takes and push operation, first syringe pump (4) is for drawing standard mother liquid multi-cavity bottle according to first control signal, after absorption
Liquid is pushed to according to first control signal in solution mixing pit (1).
The second control signal that the second control module B is used to be sent according to host computer controls the second syringe pump (5) to inhale
It takes and push operation, second syringe pump (5) is used to draw dilution bottle according to second control signal, liquid after absorption
Body is pushed to according to second control signal in solution mixing pit (1).
The 3rd control module C is used for the 3rd control signal sent according to host computer control peristaltic pump (6) to solution
Mixing pit (1) is aspirated；
The circuit control panel is used for the 4th control signal sent according to host computer control magnetic stirrer (7) and is stirred
It mixes；
The Water Test Kits is used to be detected the liquid come in from detection liquid pipe (8), and testing result is uploaded
To host computer；
The host computer is used to control the first control module A, the second control module B, the 3rd control module C and circuit
Plate sends first control signal, second control signal, the 3rd control signal and the 4th control signal；The host computer is used simultaneously
In the testing result for receiving Water Test Kits, and the water quality point is drawn with the technical indicator of national verification regulation according to testing result
The judgement report of analyzer.
A kind of water quality online analyzer calibration method, comprises the following steps：
Step 1, testing staff connects the host computer communication port of the PORT COM of detected Water Test Kits and calibrating installation
It connects, the sampling system of detected Water Test Kits and detection liquid pipe (8) is attached.
Step 2, the standard mother liquid multi-cavity bottle equipped with standard solution mother liquor is connected with the first inlet tube (41)；Dilution will be housed
Dilution bottle connected with the second inlet tube (51)；By the solution concentration after the concentration of standard solution mother liquor and dilution input to
Host computer.
Step 3, host computer calculates according to the solution concentration after the concentration of standard solution mother liquor and dilution and obtains standard solution
The amount of mother liquor and the amount of dilution, and then draw the first syringe pump (4) amount of feed and the second syringe pump (5) amount of feed；Host computer
First control signal is sent to the first control module A according to the first syringe pump (4) amount of feed, is fed according to the second syringe pump (5)
It measures to the second control module B and sends second control signal, host computer sends the 4th control signal to circuit control panel, controlled to second
Molding block B sends the 4th control signal.
Step 4, the first control module A controls the first syringe pump (4) to be drawn from standard mother liquid multi-cavity bottle according to first control signal
Standard solution mother liquor；Second control module B controls the second syringe pump (5) to draw dilution from dilution bottle according to second control signal
Liquid；Second control module B controls the second syringe pump (5) first to note dilution to solution mixing pit (1) according to second control signal
Enter, then the first control module A controls the first syringe pump (4) to mix standard solution mother liquor to solution according to first control signal
Pond (1) is injected, and standard solution mother liquor has at least injected when dilution injection is completed.
Step 5, circuit control panel controls electromagnet (72) to be stirred drive to stirrer (73) according to the 4th control signal
It is dynamic, and then the liquid in solution mixing pit (1) is stirred.
Step 6, after the completion of solution is prepared, computer sends sampling instruction to detected Water Test Kits, is detected water quality
Analyzer carries out sampling operation after receiving instruction to solution in solution mixing pit (1), is detected Water Test Kits by point of water quality
Analysis information is uploaded to host computer；And the analysis work such as the error of indication, null offset, stability of display is carried out, it will after the completion of analysis
Data sending is analyzed to computer.
Step 7, host computer is analyzed according to the analysis information for being detected Water Test Kits being detected Water Test Kits
The automatic calibration of detection, and judgement report is generated, data result can trace to the source.
Automatic calibration refers to the communications protocol that calibrating installation is provided by water quality online analyzer manufacturing enterprise, realization pair
The instruction transmission of instrument and data receiver, by preset program complete to " error of indication " of instrument, " null offset ",
The detection work of projects such as " stability of display ", calibration item can be adjusted according to by the difference of test examination instrument, be not limited to above-mentioned
Three.It is automatic to refer to after experimenter's selection carries out experiment option, in entire calibration process, without manually replacing examination
Agent, without manually it is on duty, without manual record data.Whole process is automatically performed by calibrating installation.
The host computer includes the error of indication, null offset, indicating value to the project for being detected Water Test Kits analysis detection
Stability.
The testing process and computational methods (COD) of 7.1 errors of indication
After Water Test Kits stable operation, it is C to import mass concentration successivelySThe COD standards of (50,150,500mg/L)
Solution measures respectively, and continuously measurement 3 times of each solution, the error of indication is calculated as follows：
Wherein, Δ C represents the error of indication,It represents to be detected Water Test Kits measurement of concetration average value, CSAfter representing dilution
Solution concentration.
The testing process and computational methods (COD) of 7.2 null offsets：
After Water Test Kits stable operation, the first syringe pump (4), the second syringe pump (5) are controlled to molten by computer
Liquid mixing pit (1) prepares zero point correction liquid, and prepared zero point correction liquid is imported and is detected Water Test Kits measurement zero point school
Quasi- liquid records the initial zero value Z of measurement0, in 4h a zero point correction is imported to detected Water Test Kits every 30min
Liquid measures zero point indicating value Zi, take and deviate Z0Maximum zero point indicating value ZiAs maximum zero point indicating value Zmax, by maximum zero point indicating value
ZmaxWith initial zero value Z0Difference as null offset.
7.3 show the finger testing process of stability and computational methods (COD)：
After Water Test Kits stable operation, the first syringe pump (4), the second syringe pump (5) are controlled to molten by computer
Liquid mixing pit (1) prepares Standard Calibration Solutions；Prepared Standard Calibration Solutions are imported to detected Water Test Kits, record is just
Beginning measured value S0, continuous operation is for 24 hours；A Standard Calibration Solutions are imported to detected Water Test Kits every 1h interior for 24 hours, are surveyed
Measured value Si is obtained, the measured value Si for deviateing initial measurement S0 maximums is taken as greatest measurement Smax, according to the following formula meter
Calculate stability of display：
Δ S represents stability of display, SmaxRepresent greatest measurement, S0Represent initial measurement.
The error of indication, null offset, stability of display's index are to measure the evaluation index of specification Instrumental metering performance, people
Work evaluate when, need manually it is on duty 40 it is small when and handle data, this calibrating installation is alternative to be manually automatically performed above-mentioned metering performance
Appraisal.
The present invention corresponding various concentration of difference detection project in detection process to same Water Test Kits to be detected
The replacement of detection solution realized by the automatic function equipment of solution of calibrating installation, there is no need to manually replace reagent, together
When the present invention using the detection solution of same device proportioning various concentration, reduce null offset, stability of display and the error of indication
The human error of testing result.
In addition computer or other central processing units may be employed in host computer of the invention, and each function can be by being based on Windows And WinOperating system is realized, transmittable to do sample instruction and receive data, and by data
Processing calculate after formed report and can provide Water Test Kits to be detected whether qualification conclusion.
Step 8, after the completion of the detection of some detectable concentration solution, host computer sends the 3rd control to the 3rd control module C
Signal, the 3rd control module C control peristaltic pump to discharge the waste liquid in solution mixing pit, and waste liquid closes peristaltic pump after excluding, into
The preparation of the next detectable concentration point of row；
Before next detectable concentration point is prepared after waste liquid discharge, further include to the cleaning of solution mixing pit and dry, side
Method is as follows：Control architecture B controls the second syringe pump (5) to draw dilution from dilution bottle, is injected into solution mixing pit (1),
Host computer sends the 4th control signal to circuit control panel, starts magnetic stirrer (7) and solution mixing pit (1) is cleaned,
Cleaning finishes, and by the 3rd control signal peristaltic pump is controlled to discharge, so cleaning 3 times or more；Finally, the 3rd control signal is passed through
Peristaltic pump is opened in control, starts magnetic stirrer (7) by the 4th control signal so that stirrer (73) rotates, and then quick
Drying solution mixing pit (1).
The solution uncertainty diluted the present invention is based on calibrating installation is less than 3% (k=2), and can by with country
The mode that secondary reference material compares is traced to the source to National primary standard, therefore its Data Data result can trace to the source.
In the present embodiment, the first syringe pump (4) of the invention and the second syringe pump (5) are using constant displacement pump, the quantitative pump housing
Product：10ml, when constant displacement pump specification selects between 5ml, 10ml and 25ml, experiments have shown that quantitative injection pump uses two 10ml
Specification, solution prepare operability, precision highest.Constant displacement pump precision：2uL/ is walked.Constant displacement pump motor speed can be according to reality
It needs to adjust, this instrument uses speed as 30 revs/min (adjustable), experiments have shown that the pump push volume accuracy under the speed is most
It is high.
Reset mode：Constant displacement pump is mounted with optoelectronic switch in maximum push point (i.e. reset position), first with constant displacement pump before liquid
It resets, to ensure before preparing solution every time, without being full of dilution in remaining liquid, each pipeline in constant displacement pump.
Remaining liquid control in pipeline：In process for preparation, when carrying out constant displacement pump push, pipeline remains that liquid is full of
State, and by program optimization, remain that the push of mother liquor is first completed, the push of dilution finally completes, and ensures pipeline
The liquid being inside full of is always dilution (pure water), improves and prepares repdocutbility, to achieve the purpose that control accuracy.
While efficiency is taken into account, the pipeline of latus rectum 2mm is selected, connecting line overall length is as far as possible short, and caliber is as small as possible, subtracts
Few dead volume.Each component is connected by the polytetrafluoro pipe of high temperature resistant, soda acid, and pipe interface is by the way of pressure ring sealing, therefore
Junction contact area is small, and dead volume is small.Compared with raw material band sealing means, leakproofness is more reliable, and operability is more convenient, whole
It is a make sample during, this connection mode is completely fixed pipeline, non-loosening phenomenon, reduce detection failure rate.Polytetrafluoro pipe ruler
Very little is 2.85*1.25mm.
Calibrating installation matches somebody with somebody liquid, is examined through potassium bichromate solution absorbance, and solution prepares error and is less than ± 2%, whole system
There are system deviations, and repeated property experiment is when host computer generates first control signal and second control signal at this time, middle introducing
System improvement factor K can reduce mechanical liquid mixing system error so that global error is better than ± 1%.
The water quality online analyzer of the present invention is online including being not limited to COD (COD) in-line analyzer, ammonia nitrogen
Analyzer etc. uses water quality parameter point applied to the live non-laboratory of water head site, discharge of industrial wastes mouth, water body environment monitoring point
Analyzer device.
The present invention can one be pushed to field calibration Water Test Kits, the mobility of calibrating installation ensures molten during analysis
Liquid it is now with the current, artificial prepared with traditional compared with solution brings to field assay, it is no longer necessary to consider that low concentration detects solution
Preservation problem and solution prepare site requirements, solution prepare reproducibility higher.
The present invention realizes the Full-automatic calibration to water quality online analyzer, it is unattended according to predetermined criteria or will
(technical specifications such as such as national metrological verification regulations, calibrating standard) are asked, all measuring indexs of water quality online analyzer are carried out
A series of continuous continual analysis tests, gathered data is simultaneously analyzed and processed, and judges whether calibration result meets phase
The index request of pass generates corresponding original calibrated report.The reserved output port with external data communication realizes calibration result
Long-range acquisition prepare.Whole process realizes intelligent processing, completely without manual intervention.Meanwhile device possesses automatic dimension
The function of guarantor, being capable of automatic clean and maintenance, lifting device reliability of operation and stability in running clearance or holding state.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of solution mixing pit cleaning and drying method, which is characterized in that comprise the following steps：The first step：Pass through Control architecture B
The second syringe pump (5) is controlled to draw dilution from dilution bottle, is injected into mixed solution pond (1), host computer is controlled to circuit
Plate sends the 4th control signal, starts magnetic stirrer (7) and is stirred cleaning to mixed solution pond (1), cleaning finishes, and passes through
The control peristaltic pump discharge of 3rd control signal；Second step is controlled by the 3rd control signal and opens peristaltic pump, while passes through the 4th
Control signal starts magnetic stirrer (7) so that stirrer (73) rotates, and then quickly dry mixed solution pool (1).
2. solution mixing pit cleaning and drying method according to claim 1, it is characterised in that：Cleaning time in the first step
Number is 3 times or more.
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| CN201711220185.7A CN108106917A (en) | 2017-11-28 | 2017-11-28 | A kind of solution mixing pit cleaning and drying method |
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| CN110513267A (en) * | 2019-08-31 | 2019-11-29 | 广州科服仪器有限公司 | A kind of exchange of solvent system |
| CN111351787A (en) * | 2020-03-20 | 2020-06-30 | 杭州绿洁环境科技股份有限公司 | Circulation type turbidity calibration and calibration equipment |
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Application publication date: 20180601 |